Knock Knock.
Who’s there?
Pre-screen.
Pre-screen who?
Pre-screen you and your head first, Mr Minister!

Knock Knock.
Who’s there?
Anna.
Anna who?
An’ now to Stage 3 of my agitation!

Knock Knock.
Who’s there?
Black money.
Black money who?
Black many accounts yes, but back money to India, no!

These versions by Sunil Rajguru